The story is about Manel (Sanz), a somewhat neurotic physicist with a crushing theory: the laws of nature govern relationships. One day, Elena (Vázquez), an attractive and sought-after actress, falls in love with him. But when the relationship is over Manel tries to explain through physical laws how he is not the only one to blame for its failure.

The style of the film—part documentary and part fiction— was a very special challenge for Fernando Velázquez. He gave his score a kind of romantic and Impressionistic color, almost Deleruesque, with delicate orchestration and a beautiful, flowing leitmotif that unfolds slowly throughout the entire score. The music is performed by The Basque Symphony Orchestra under the baton of the composer.